On Wed, 2006-06-21 at 02:02 +0000, Cesare Marilungo wrote:
> Lee Revell wrote:
>
> >On Tue, 2006-06-20 at 10:24 -0700, Mark Knecht wrote:
> >
> >
> >>Many built-in/inexpensive sound cards are stuck at 48K. Possibly this
> >>one is also?
> >>
> >>
> >>
> >
> >It's still a bug for JACK not to report any error.
> >
> >Does aplay report any errors with a 44100Hz file?
> >
> >
> >
> In fact it happens on my laptop (it has a VIA AC97 chip). Jack does
> report the sample rate you choose but the other applications connect to
> it at 48000Hz.
>
> I guess it is because they're designed to play dvds (which are at
> 48000Hz) and they don't have a built-in sample rate converter. Maybe
> JACK assumes they always have one since it is designed for high end cards?
>

I think cards defaulted to 48000Hz before DVDs existed. I believe the
AC97 spec requires it and it's cheapest to support a single sample rate
and rely on a software sample rate converter for everything else.